Representativeness of sugar cane core sampling systems - Fernandes, Elisabete A. De Nadai; Sarríes, Gabriel Adrián; Bacchi, M. A; Bode, P; Kruyff, R; Dias, Carlos Tadeu dos Santos; Wiendl, J A; Luccas, N (International Conference on Methods and Applications of Radioanalytical Chemistry - Marc X, 2015)